The AirTAC AirTAC SDA40X10SB Compact Cylinder | 40mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø40mm bore and 10mm stroke, PT1/8 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
The AirTAC SDA40X10SB is a double-acting, single-rod compact cylinder engineered to deliver 628.3 N of push force at 0.5 MPa. Its riveted assembly merges the barrel, rear cover, piston, and rod into an ultra-short unit, drastically reducing axial mounting depth compared to conventional round-body designs. This space efficiency is critical when machine envelopes are tight.
This specific configuration includes a built-in piston magnet (-S) for use with AirTAC reed or electronic switches, and a male M14x1.5 piston-rod thread (-B) for secure load coupling. The 16 mm hard-anodized rod operates at speeds of 30-500 mm/s. End-stops rely on a fixed NBR bumper that decelerates the piston near stroke end rather than an adjustable air cushion.
| Model | AirTAC SDA40X10SB Compact Cylinder | 40mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 10 mm |
| Acting type | Double acting |
| Port size | PT1/8 |
| Rod end thread | M8×1.25 female / M14×1.5 male (B) |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Fixed NBR bumper (both ends) |
| Max standard stroke | Up to 120 mm |
Specifications follow the official AirTAC SDA compact-cylinder datasheet. Confirm against the product label before installation. Port thread: PT (standard). Rod: female thread (blank) / male thread (B).
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| SDA | Compact (thin) double-acting cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×10 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| B | Male-thread piston rod (omit = female-thread rod). |
Thread: PT standard. Related SDA-family variants: SSA (single-acting push), STA (single-acting pull), SDAD (double rod), SDAJ (adjustable stroke), SDAT (duplex), SDAW (duplex-end).
Uses the 628.3 N extend force to pop singulated circuit boards out of a routing fixture, where the 10 mm stroke and short body fit within the router dust enclosure.
Deploys the male M14x1.5 rod to fold minor flaps on small pharmaceutical cartons, benefiting from the compact footprint to mount closely beside the main conveyor belt.
Drives a short 10 mm marking pin into aluminum extrusions, operating at 30-500 mm/s while relying on the fixed NBR bumper to absorb the end-of-stroke impact.
Selecting this 40 mm bore provides a substantial step up from the SDA32, which offers 402.1 N of push at 0.5 MPa. If your application requires greater thrust, the SDA50 delivers 981.7 N at the same pressure. For this SDA40X10SB configuration, expect a safe working load around 377 N (roughly 60 percent of the 0.5 MPa figure), translating to a vertical lift capacity of about 32 kg with a 2:1 safety margin.
Because this is a double-acting actuator, it will not hold its position if air pressure drops or the valve is centered; the piston will drift, and the fixed bumper only decelerates near the stroke end rather than locking the load. For suspended loads, integrate an external rod lock or pilot-operated check valve. When ordering, confirm the 10 mm stroke, PT1/8 port, male M14x1.5 rod thread, and the integrated magnet for switch mounting.
Quick checklist
This double-acting cylinder generates 628.3 N push and 527.8 N pull at 0.5 MPa, and 879.6 N push and 738.9 N pull at 0.7 MPa. The theoretical maximum push is 128 kgf at 1.0 MPa. It operates between 0.15 and 1.0 MPa, with a proof pressure of 1.5 MPa, and functions in temperatures from -20 to +70 C.
No, it uses a fixed NBR bumper at each end to decelerate the stroke, which is not field-adjustable; for high-energy cycles, slow the approach or add an external shock absorber. Additionally, the -B option specifies a male M14x1.5 piston rod thread instead of the default female M8x1.25.
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